Transport of invasive species

The high costs of invasive species

“Species introduced to new regions through human activities are termed alien species. Invasive alien species represent a subset of alien species – animals, plants, and other organisms – known to have established and spread with negative impacts on biodiversity, local ecosystems and species. Some of the most problematic invasive alien species arrive through multiple introduction pathways and repeated introduction. Invasive alien species are recognized as…

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The sixth mass extinction on Earth

Featured article: Ceballos, G., Ehrlich, P. R., & Raven, P. H. (2020). Vertebrates on the brink as indicators of biological annihilation and the sixth mass extinction. Proceedings of the National Academy of Sciences of the United States of America, 117(24), 13596-13602. [PDF] [Cited by] “The ongoing sixth mass species extinction is the result of the destruction of component populations leading to eventual extirpation of entire…

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Further loss of plant and animal species due to climate change may occur abruptly

Earth’s climate is changing. No, it is not a hoax, not a projection, not something that may happen hundreds of years from now, and not some scare tactic from evil liberals. No, it’s really changing; it is happening right now. And, one of the consequences has been and is a loss of biodiversity–the extinction and disappearance of animal and plant species. “32% of all known…

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Science highlights: human adult neurogenesis, and a fungus killing amphibians

A new study provides further evidence that the adult brain in humans does grow new neurons (a process called neurogenesis) in the hippocampus–the section of the brain where learning, memory, and mood regulation is controlled. These new brain cells may play a role in depression, PTSD, Alzheimer’s, epilepsy, etc. Read the article (Karen Weintraub, Scientific American, 25 March 2019). And, go to the source —…

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